Water balloon dart



FIG. 1 is a front perspective view of my claimed design, with a balloon shown in dotted lines that forms no part of the claimed design;

FIG. 2 is a right side elevation view thereof, the left side elevation view being an opposite view thereof;

FIG. 3 is a front side elevation view thereof, the rear side elevation view being an opposite view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a water balloon dart, as shown and described. 